to amplify a small signal to sufficient level,so that it can travel to a large distance from first stage till the last stage
so you could amplify the signal without having to change the power source.
n-p-n
The energy comes from an additional power source, like a battery. Via various resistors and capacitors, the energy from the power source is put into the circuit. The signal that enters the ciruit will exit the circuit with a higher energy; the signal has been amplified.
Depends on the circuit the transistor is used in:it can amplify voltageit can amplify currentit can amplify power
it extracts the video signal amplify it & sends it to picture tube for display.
Usually to amplify the video signal across long distances of cable. This is necessary to maintain quality and consistency of the video signal in runs of 100 ft. or more. The word "video" means wideband. A video amplifier is used for any wideband signal.
Amplifiers are the device which are used to amplify a signal Multistage amplifier are use to amplify a signal into a desire level
Amplify is a verb. This device amplifies the signal from the microphone so that it can be heard.
to amplify a small signal to sufficient level,so that it can travel to a large distance from first stage till the last stage
It depends on how you bias the transistor. If you ground the emitter, which is very common, you will need to offset the input signal so you can amplify the full voltage swing.
ac and dc
to amplify the input pneumatic signal
they amplify the phone's incoming signal
I think Amplifier is use for direct signal or D.C signal & the main function of amplifier is to make that signal sharp(powerful) so that a microprocesser process it.
An amplifier that is designed to amplify the signal from an electric guitar and drive a speaker to convert that signal to sound.
The work of a transistor is to amplify the input signal to get high output value.